Maximum aperture
This is the widest aperture that can be selected on the camera and is an indication of the speed of the lens. On zoom lenses two figures are often given.
Maximum aperture
Techniques Glossary Maximum aperture
This is the widest aperture that can be selected on the camera and is an indication of the speed of the lens. On zoom lenses two figures are often given.
Maximum Aperture or Lens Speed
The "maximum aperture" of a lens is also called its "lens speed". Aperture and shutterspeed are interrelated via exposure.
Maximum Aperture The maximum diameter of the lens opening is referred to as its maximum aperture or minimum f-number. The minimum f-number is the smallest f-number that can be selected with the lens. Find out more.
MAXIMUM APERTURE
Why should you care what the maximum aperture is? Simple, the maximum aperture decides how much light your camera lets in to record the picture.
Maximum aperture. The largest lens opening or f-stop available with a particular lens or with a zoom lens at a particular magnification.
3) Maximum aperture matters. Many people have an incomplete understanding of the advantages of fast (large maximum aperture) lenses. Yes, an f/2.8 lens lets you shoot in lower light than an f/5.
Maximum apertures are measured in f/stop numbers, which are actually a ratio of the size of the lens aperture and focal length. The smaller the f/stop number, the more light is let in.
Maximum aperture diameter, or minimum f-number, of a lens controlling the amount of light admitted through the lens
LED
Light Emitting Diode.
Maximum aperture
The widest aperture which the diaphragm is capable of opening up to; it is engraved on the lens in this manner; 1: 1.4.
The maximum aperture of the lens is extremely important in your decision to buy and carry a lens for wildlife photography. The reason why this is so crucial is because you want sharp pictures.
The maximum aperture of a 50mm lens is much wider than your standard zoom. Does this matter? Yes it does - the wider the aperture, the more you can blur the background, and the more your subject stands out.
The maximum aperture for a zoom lens may be same for all focal lengths, but it is more common that the maximum aperture is greater at the wide-angle end than at the telephoto end of the zoom range.
The maximum aperture of most lenses falls somewhere in the range between f/1.2 and f/5.6, though there are a few 3rd party zooms which have a maximum aperture of f/6.3 at the long end of their range.
If the maximum aperture value of your lens starts flashing in the viewfinder it means the background of the scene you're shooting is too dimly lit. If you want to try and expose the background then you should decrease the shutter speed to compensate.
Refers to the maximum aperture of a lens. One with a wide aperture is called "fast". e.g. a f/1.4 lens, transmitting more light than a "slow" lens, e.g. a f/5.6 lens.
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Focal length, maximum aperture, image stabilization as well as size, weight and price are the most important features with lenses.
In addition there are a few lesser important (for most of us) features which you can read more about here ...
To Cedric: The maximum aperture you can use is usually limited by the lens itself, not the camera body.
The maximum aperture or aperture range on a zoom lens. A lens' maximum aperture is determined by dividing the actual diameter of the aperture opening into the focal length of the lens. That's why the aperture might change from f/2.
Set your lens to maximum aperture to highlight action
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Lenses with wide maximum apertures, such as f/1.4, are great for shallow depth of field. You can isolate one part of a subject, keeping it in focus while blurring the rest of the image. Many photographers use this technique to great artistic effect.
Automatic index; Nikon's system for telling the camera's exposure meter what the lens' maximum aperture is.
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The lenses of modern SLR cameras stay at their maximum aperture until the shutter is tripped. These lenses provide a bright image in the viewfinder to focus.
First decide on the focal lengths you need and the speed of its maximum aperture. Now decide if you prefer a zoom or a fixed lens.
Also, when you use the zoom, the maximum aperture almost always gets a lot worse - and those are the times when you need faster shutter speeds! ...
Aperture Generally, when buying lens, one specification that will be mentioned is the maximum aperture. Generally, the nicer a lens is, the bigger the maximum aperture will be. Remember, the smaller the number, the bigger maximum aperture is.
3 is often the maximum aperture of a budget lens at the long end (e.g. a budget Canon or Sigma lens at 200mm). In which case you can expect significant softness from the lens itself. You need to "stop the lens down" to achieve better sharpness (e.g.
When pressing the depth of field preview button, the image will darken (unless of course your selected aperture happens to be the lens's maximum aperture).
The biggest selling point of using a vintage lens on a DSLR is the affordability of owning a lens with an ultra-wide maximum aperture.
Manual Nikkor lenses, produced from 1977 until mid 80s, introduced Automatic Maximum Aperture Indexing, designed to let the camera body know what is the maximum aperture of the mounted lens for metering.
Although all three lenses are bright (maximum aperture f/2.8) and share the same level of maximum magnification, ...
The terms slow and fast lenses refer to the maximum aperture of the lens. This is the maximum amount of light that a lens lets in. So the fast lens is the type of lens that allows more light and the slow lens is the opposite.
When extension tubes are inserted between the lens and a teleconverter, you no longer get accurate maximum aperture reporting in your viewfinder.
A dark exposure can be caused by any number of things, but most likely, it means that the combination of your camera's maximum aperture setting and minimum shutter speed still isn't letting in enough infrared light.
But realize this: Unless you have professional gear, the maximum aperture of your 200mm lens is probably around ƒ/4.5. It's not very fast.
Film which has a small maximum aperture. (i.e. f8 )
Slow Sync
A flash technique for using the flash at a slow shutter speed.
All lenses are described in two ways, by focal length (as measured in millimeters) and by speed (jargon for their maximum aperture size). A 300mm f/2.8 lens, for example, has a focal length of 300mm and a speed of f/2.8.
This refers to a zoom lens in which the maximum aperture setting decreases as the focal length increases. For example, an 18-55mm f/3.5-5.6 would have a maximum aperture of f/3.5 when zoomed out to its 18mm setting but a maximum of only f/5.
All lenses have a built in maximum aperture. This refers to how wide the lens's iris can be made. There are lots of reasons to adjust aperture, but the basic reason is speed.
Considering 35mm film 24x36mm frame format, a fast lens with fixed focal length between 24mm and 135mm will typically have a maximum aperture of f2.5 or less. f2.
Lenses with a larger maximum aperture e.g. f/2 would be called fast (they allow more light pass through to the CCD).
-Slow lens -lens with a small maximum aperture, such as f/8.
-Slow sync - flash technique for using the flash at a slow shutter speed.
Different lenses have different maximum apertures. Those with larger ones are called 'faster' and one of the impacts of having a fast lens is that you can make your depth of field smaller (another is that you can shoot in lower light situations ...
Lenses usually have a minimum and maximum aperture. A lens with a large maximum aperture (or a low f-stop like F2) is often called a fast lens. Many cameras have an aperture priority mode that allows you to adjust the aperture to your own liking.
The low number tells you the maximum aperture in wide-angle and the large number tells you the maximum aperture when you’re zoomed in. You can learn more about zoom camera lenses in this article, or learn more about f-stops here.
Although fast lenses provide greater light-gathering capabilities (85mm Æ'/1.8, for instance), you should try to avoid using the lens at its maximum aperture. Even fast zooms, such as a 70-200mm Æ'/2.
Determined by the maximum aperture in relation to focal length. Lens speed is relative: a 400 mm lens with a maximum aperture of F/3.5 is considered extremely fast, while a 28mm F/3.5 lens is considered to be quite slow.
Your 200mm or 400mm lens probably has a maximum aperture of Ÿ/4 or even slower. And you want to shoot at a minimum of 1/125th or 1/250th to stop the action. So even wide open, your long lens may not be able to get sufficient exposure.
Fast lens
A lens with a wide maximum aperture (f2.8 is a fast lens in a 35mm telephoto design). Often used in low light situations or when a fast shutter speeds are always required.
(see Aperture, Shutter speed & Tele) ...
A "fast" lens, that is, a lens with a maximum aperture (opening) of f/2.8 or larger. The lower f-number, the larger the aperture.
A higher f-stop like F16 requires a slower shutter speed, which allows for a greater depth of field. Lenses usually have a minimum and maximum aperture. A lens with a large maximum aperture (or a low f-stop like F2) is often called a fast lens.
The reason you have 3.5-4.5 is because you are using a zoom lens. think of this - the maximum aperture - how big the aperture is - doesn't change as the focal length changes. Thus, the f-stop changes because the ratio is going up or down.
-Fast lens - lens with a wide maximum aperture (low f number).
-Ferric chloride - bleaching solution used on negative materials.
Portrait Mode: Applies maximum aperture to bring the person into focus while allowing the background to fall out of focus.
SLOW LENS -A lens with a relatively narrow maximum aperture -ƒ/8, for example.
SLR - Abbreviation for Single Lens Reflex.
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The 70-300mm has a maximum of f/4 at 70mm, but by the time you get to 300mm the maximum aperture is only f/5.6.
4 lens, the actual diameter of its maximum aperture is 50mm divided by 1.4 or 35.7mm; at f/2, the diameter becomes 50mm/2 or 25mm; at f/2.8, the aperture is 50mm/2.8 or 17.
Measured by the largest aperture at which the lens can be used. A fast lens has a larger maximum aperture and can transmit more light than a slow one. 2. The relative sensitivity to light of photographic film. See Film speed.
Retrofocus design plagues wide-angle lenses
Maximum optical quality at f/8-11 while often mediocre at maximum apertures for 28-80 lenses.
Often considerable shutter lag
Dark viewfinder with f/5.6 and slower lenses ...
 See also: Aperture, Lens, Camera, Image, Light
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